No explanations with these tweaks? What do these do? Is linking to the source enough or should we describe what we're doing in detail? I'm never too comfortable with "do this" type instructions without a "this is why" explanations.--[[User:Multiphrenic|Multiphrenic]] 09:05, 27 April 2011 (EDT)

No explanations with these tweaks? What do these do? Is linking to the source enough or should we describe what we're doing in detail? I'm never too comfortable with "do this" type instructions without a "this is why" explanations.--[[User:Multiphrenic|Multiphrenic]] 09:05, 27 April 2011 (EDT)

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==<s> Suggestions for saving power </s>==

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I'd add a a little script for turning off the wlan-Hardware when not connected at startup...if not turned off, the wlan-Hardware will go on searching for an AP to connect to, although there might be no potential AP at all, thus wasting power.

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I regularly forgot to disable it when en route, having to save power without any need of my wlan - it may not be too much power to save, but it's also a very simple little script to execute at startup (maybe with a sleep of 60s) to save it:

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#!/bin/bash

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essid="`iwconfig wlan0 | grep ESSID | awk {'print $4'}`"

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if [ "$essid" == "ESSID:off/any" ] ; then

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sudo iwconfig wlan0 txpower off

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fi

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--[[User:Wysiwyg|Wysiwyg]] 11:20, 12 June 2011 (EDT)

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:If it works for you it could be useful also for others, add it under Suggestions for saving power. -- [[User:Kynikos|Kynikos]] 09:29, 13 June 2011 (EDT)

: In fact, the article mentiones "{{AUR|batterymon}} which can be found in the [[Arch User Repository|AUR]]" which seem to no longer exist in the AUR. Perhaps this reference should be removed --[[User:Mloskot|Mloskot]] ([[User talk:Mloskot|talk]]) 23:02, 17 June 2012 (UTC)

There may also be a uevent that fires when the battery reaches an alarm state (when /sys/class/power_supply/BAT*/alarm is reached or changes). I have not tested this on my own system yet or figured out just how that file works yet. [[User:Ego.abyssi|Ego.abyssi]] ([[User talk:Ego.abyssi|talk]]) 23:32, 3 March 2013 (UTC)

There may also be a uevent that fires when the battery reaches an alarm state (when /sys/class/power_supply/BAT*/alarm is reached or changes). I have not tested this on my own system yet or figured out just how that file works yet. [[User:Ego.abyssi|Ego.abyssi]] ([[User talk:Ego.abyssi|talk]]) 23:32, 3 March 2013 (UTC)

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Strange, on my system battery sends "change" uevent each time battery is charged or discharged by 1%, so rule works perfectly and polling is an overcomplication.

Revision as of 06:49, 30 March 2013

Other tweaks

No explanations with these tweaks? What do these do? Is linking to the source enough or should we describe what we're doing in detail? I'm never too comfortable with "do this" type instructions without a "this is why" explanations.--Multiphrenic 09:05, 27 April 2011 (EDT)

Udev Rule to Suspend System

The udev rule could be edited to run a script that does polls the battery's capacity at regular interval when it's status changes to Discharging:

There may also be a uevent that fires when the battery reaches an alarm state (when /sys/class/power_supply/BAT*/alarm is reached or changes). I have not tested this on my own system yet or figured out just how that file works yet. Ego.abyssi (talk) 23:32, 3 March 2013 (UTC)

Strange, on my system battery sends "change" uevent each time battery is charged or discharged by 1%, so rule works perfectly and polling is an overcomplication.
--Eruditorum (talk) 06:48, 30 March 2013 (UTC)